a. 29
b. 30
c. 60
d. 150
e. 342
2007-12-09 05:44:12 · 4 answers · asked by fasten113001 1 in Science & Mathematics ➔ Biology
Missing data.
What is the molecular weight of the molecule in figure 3.2
Whatever it is, that is the molar weight also. Take that number times 2.5 and that is how much should go into 2.5 liters of the water to make a 1M solution. For any chemical, the sum of the atoms in the molecule (atomic weights) equals the molar weight of that chemical. The mole is an interesting phenomenon since it turns out that for any element or molecule, the atomic weight in grams has 6.2X10-23 atoms or molecules in it.
2007-12-09 05:51:15 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Figure out the molar mass of the molecule in the figure.
The solution will contain (2.5 L X 1 mol/L) = 2.5 mol of the compound. Multiply the molar mass of the compound by 2.5 mol to get the mass of the compound needed.
2007-12-09 13:50:24 · answer #2 · answered by hcbiochem 7 · 0⤊ 0⤋
You need the figure.
2007-12-09 13:46:10 · answer #3 · answered by Stevengoku 2 · 0⤊ 0⤋
Its D
2013-10-15 00:24:53 · answer #4 · answered by Supernatural 2 · 0⤊ 0⤋